three volumes can open three boxes. If you look at the precautions on the KTV page on the group buying website, (very important). For example, you need to make an appointment in advance. When can you use it? Just look at the precautions. During the day? It's impossible. Generally, one roll can open a box. There is no limit to the number of people. (I hope the notice doesn't say that only big bags can be opened at most.) One person in 25 yuan is expensive during the day. Unless you go alone, you can play in another KTV. Now it's usually 31 to 51 for group KTV. You can also send things.)